org.springframework.faces.webflow.SpringBeanWebFlowVariableResolver Maven / Gradle / Ivy
/*
* Copyright 2004-2008 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.faces.webflow;
import javax.faces.context.FacesContext;
import javax.faces.el.VariableResolver;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.support.StaticListableBeanFactory;
import org.springframework.web.jsf.SpringBeanVariableResolver;
import org.springframework.webflow.execution.RequestContext;
import org.springframework.webflow.execution.RequestContextHolder;
/**
* JSF 1.1 variable resolver for Spring Beans accessible to the flow's local bean factory.
*
* @author Jeremy Grelle
*/
public class SpringBeanWebFlowVariableResolver extends SpringBeanVariableResolver {
private static final BeanFactory EMPTY_BEAN_FACTORY = new StaticListableBeanFactory();
public SpringBeanWebFlowVariableResolver(VariableResolver originalVariableResolver) {
super(originalVariableResolver);
}
protected BeanFactory getBeanFactory(FacesContext facesContext) {
RequestContext requestContext = RequestContextHolder.getRequestContext();
if (requestContext == null) {
return EMPTY_BEAN_FACTORY;
}
BeanFactory beanFactory = requestContext.getActiveFlow().getApplicationContext();
return beanFactory != null ? beanFactory : EMPTY_BEAN_FACTORY;
}
}